Blow dryer



FIG. 1 is a top, right side perspective view of a new, original and ornamental design for a blow dryer;

FIG. 2 is a right side elevation view of FIG. 1;

FIG. 3 is a left side elevation view of FIG. 1;

FIG. 4 is a front elevation of FIG. 1;

FIG. 5 is a rear elevation view of FIG. 1;

FIG. 6 is a top plan view of FIG. 1; and,

FIG. 7 is a bottom plan view of FIG. 1.

The broken lines in the drawings depict portions of the blow dryer that form no part of the claimed design. 

CLAIM The ornamental design for a blow dryer, as shown and described. 